Squash integration of the reviewed Go core, frontend audit fixes, release tooling, and deployment hygiene. CI passed all Server/Client jobs.
Accepted native Client lifecycle and Windows capture aspect phase. All Web/Server and three-platform Client checks passed.
Complete the Native Client source/audio boundary, strict v5 loopback contract, Browser media lifecycle handling, and non-blocking release checks. Keep unverified platform/physical gates explicit; do not rewrite the Go Server.